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YouTube

The 100 Prisoners Problem - Optimal Solution Using Permutations and Probability

Wrath of Math via YouTube

Overview

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Explore a 22-minute mathematical video that delves into the fascinating 100 prisoners problem and its optimal solution. Learn how 100 death row inmates, numbered 1-100, must each find their assigned number within 50 attempts by opening numbered drawers containing random numbers - with their collective survival depending on everyone's success. Master key mathematical concepts including permutations, cycles, counting, and probability while discovering why the optimal strategy provides a surprisingly better chance of survival than intuition might suggest. Through clear explanations and step-by-step analysis, progress from understanding the naive approach through to grasping the sophisticated solution involving cycle structures and their probabilistic implications.

Syllabus

Intro
Naive Strategy
Permutations
The Strategy
Cycles
Counting Problematic Cycles
Probability of Survival
Final Thoughts

Taught by

Wrath of Math

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